This is eqn 2.5.3.1 that they are talking about Problem 1 (20 points): Use MATLA

Question

This is eqn 2.5.3.1 that they are talking about

Problem 1 (20 points): Use MATLAB to solve example 2.2 on textbook page 49. When solving Eqn. (2.5.31), instead of converting it to Eqns. (2.5.32) and (2.5.33) as shown in the book, you can modify it to the following form and use MATLAB to solve it directly. Because ui =0, us = 0.02, and F, = F. = F. = 0, Eqn. (2.5.3 I) can be modified as folows: -200 400 200 0 0 120 200 400 200 0 0 0 0200 400200 0 0 0 0 0 1 Jl4J L0.02] As a result, you need to show global displacement vector d, global force vector F and force vector for each element.

Explanation / Answer

A = [1 0 0 0 0;-200 400 -200 0 0;0 -200 400 -200 0; 0 0 -200 400 -200; 0 0 0 0 1];
B = [ 0 0 0 0 0.02];
X = A/B

>> A = [1 0 0 0 0;-200 400 -200 0 0;0 -200 400 -200 0; 0 0 -200 400 -200; 0 0 0 0 1];
B = [ 0 0 0 0 0.02];
X = A/B

X =

0
0
0
-10000
50

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